Kate Somerville Peptide K8 Power Cream

Kate Somerville Peptide K8 Power Cream
6.4
/ 10
Moisturizing
5.4 Humectancy icon Humectancy
7.3 Occlusivity icon Occlusivity
$$$$

Review

Results you may expect from using Kate Somerville Peptide K8 Power Cream:

Based on the ingredient analysis by CreamScan, these are the key benefits you can expect from using Kate Somerville Peptide K8 Power Cream:

  • Significant moisturizing. It has a moisturizing rating of 6.4 out of 10.

How moisturizing is it?

Highly moisturizing: Kate Somerville Peptide K8 Power Cream has a moisturizing rating of 6.4 out of 10.

Is it more humectant or occlusive? Rather occlusive. It has a moderate humectancy of 5.4 out of 10, primarily due to the substantial concentration of Glycerin (est. ≈3.0%), and a high occlusivity of 7.3 out of 10, mainly due to the significant content of Stearic Acid (est. ≈9.0%) and Isocetyl Stearoyl Stearate (est. ≈2.0%).

Please refer to the Ratings section below for details of the moisturizing rating calculation.

Anti-wrinkle efficacy

According to CreamScan analysis, Kate Somerville Peptide K8 Power Cream has a zero anti-wrinkle rating.

It contains some ingredients marketed as effective in reducing wrinkles, specifically Ascorbyl Palmitate, Copper PCA, and Palmitoyl Oligopeptide. However, the studies supporting the anti-wrinkle claims of these ingredients provide insufficient evidence of efficacy according to CreamScan Research Evaluation Standards. Therefore, these ingredients do not generate the anti-wrinkle rating.

Please refer to the Ratings section below for details of the anti-wrinkle rating calculation.

Ingredients

Est. % Ingredient Origin Functions
60
9
6
4
3
2.5
2
1.5
1.3
1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
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Ratings

All humectants
5.4
3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Benchmark
10
All occlusives
14.6
9.0
2.0
1.5
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Benchmark
20
Moisturizing rating
6.4
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 5.4 10
5.4
3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Occlusivity All occlusives 14.6 20
7.3
9.0
2.0
1.5
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Moisturizing rating
6.4
Ingredient Est. % Benchmark Occlusivity
9
2
1.5
0.3
0.3
0.3
0.3
0.3
0.3
0.3
All occlusives 14.6 20
7.3
All occlusives
14.6
9.0
2.0
1.5
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Benchmark
20
Ingredient Est. % Benchmark Humectancy
3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
All humectants 5.4 10
5.4
All humectants
5.4
3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Benchmark
10
Ingredient
Ingredient anti-wrinkle power
when present at, %
in this formula est. %
Rating
n/a
- 0.3 -
n/a
- 0.3 -
n/a
- 0.3 -
Total
0
Ascorbyl Palmitate
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Copper PCA
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Palmitoyl Oligopeptide
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Anti-wrinkle rating
0
Ingredient Est. % Benchmark
Rich in Antioxidants
0.3
0.3
0.3
0.3
All antioxidants 1.2 3 No
All antioxidants
1.2
Tocopheryl Acetate
0.3
Citrus Grandis Peel Oil
0.3
Ascorbyl Palmitate
0.3
Sodium Hyaluronate
0.3
Benchmark
3
Ingredient Est. % Benchmark Rating
0.3
All soothing 0.3 5 No
All soothing
0.3
0.3
Benchmark
5

Ingredients explained

Water
Est. %60
Function
Origin
The most used ingredient in skincare. Its concentration defines the product texture: rich creams may have about 50% of water while a light jelly about 90%. Water doesn’t moisturize the skin by itself and is used in skincare as a solvent for other ingredients.
Stearic Acid
Est. %9
Function
Origin
A saturated fatty acid found in vegetable butter and animal fats. It is an occlusive moisturizing and emollient ingredient and also helps to maintain the barrier function of the skin.
Cetearyl Alcohol
Est. %6
Function
Origin
A blend of cetyl alcohol and stearyl alcohol, the fatty alcohols that are derived from palm oil. It helps to create emulsions that give off a soft and silky emollient feel and also increase product thickness.
Ceteareth-20
Est. %4
Function
Origin
A fatty alcohol emulsifier that helps to mix oil and water together, best for oil-in-water emulsions. It is also a cleansing agent. When combined with cetearyl alcohol, ceteareth-20 forms a mix that, according to acne.org, can be comedogenic.
Glycerin
Est. %3
Function
Origin

The most popular moisturizing ingredient in the world. It is a powerful humectant – cheap yet very effective.

Isopropyl Myristate
Est. %2.5
Function
Origin
A fast-spreading, cost-effective, non-greasy emollient that is typically used for lubrication, spreadability, or to remove “tackiness” from a product. Isopropyl Myristate is listed as a common comedogenic ingredient by acne.org.
Isocetyl Stearoyl Stearate
Est. %2
Function
Origin
Description is coming soon
Dimethicone
Est. %1.5
Function
Origin
The most common silicone in skincare. It forms a silky, smooth film on the skin’s surface and can help to prevent water loss. It also aids in wound healing and can treat and soften scars. Dimethicone is considered to be very safe for use.
Cyclopentasiloxane
Est. %1.3
Function
Origin
A lightweight, fast-spreading emollient that leaves a very soft and silky after-feel on the skin. Supplied as a clear and colorless liquid, cyclopentasiloxane is often used as a solvent to dissolve other silicones in.
C12-15 Alkyl Benzoate
Est. %1
Function
Origin
A synthetic emollient ester. It works to improve the appearance of the skin by filling in the microcracks on the surface, thereby making the skin appear softer and smoother. It imparts a lightweight, velvety feel.
Caprylic/Capric Triglyceride
Est. %0.3
Function
Origin
A natural occlusive moisturizing and emollient ingredient, it is a blend of glycerin and two fatty acids, caprylic and capric acid. It creates an oil-based protective layer on the skin, thereby preventing water loss.
Orbignya Oleifera Seed Oil
Est. %0.3
Function
Origin
A fatty oil, with emollient and occlusive properties, expressed from the seeds of the Babassu palm. It is similar to coconut oil in a way.
Cannabis Sativa Seed Oil
Est. %0.3
Function
Origin
Also known as hemp seed oil, an occlusive moisturizing and emollient oil derived from the seeds of industrial hemp. It has nothing to do with full-spectrum CBD or THC. It contains unsaturated fatty acids, antioxidant phytosterols, phytol, and vitamin E.
Squalane
Est. %0.3
Function
Origin
An occlusive moisturizing and emollient compound that forms part of the skin’s sebum. The main source of squalane had always been shark liver. Now, however, it is manufactured synthetically or derived from plant oils, such as olive and peanut oil.
Cholesterol
Est. %0.3
Function
Origin
An emollient and important barrier repairing lipid, effective when combined with fatty acids and ceramides. Around 25% of the skin’s lipid layer is made up of cholesterol and it is found in the membrane of every single cell in our body.
Urea
Est. %0.3
Function
Origin
Urea can be found in urine, skin, and other tissues as a degradation product of proteins. In concentrations below 5%, urea is humectant moisturizing. At concentrations above 10% it is keratolytic, that helps to break away old, flaking, and cracked skin.
Sodium PCA
Est. %0.3
Function
Origin
One of the most important parts of the skin's Natural Moisturizing Factor, a mixture of various compounds that keeps the skin’s surface well hydrated. Sodium PCA is used in skincare for its fantastic humectant properties.
Macadamia Ternifolia Seed Oil
Est. %0.3
Function
Origin
An occlusive moisturizing and emollient oil extracted from macadamia nuts. It is clear and pale yellow with a pleasant nutty aroma and contains oleic and palmitoleic fatty acids, tocopherols, phytosterols, squalene, and polyphenols.
Simmondsia Chinensis (Jojoba) Seed Oil
Est. %0.3
Function
Origin
A liquid plant wax, also known as Jojoba oil, pressed from the seeds of Simmondsia chinensis. These seeds can contain up to 50% of liquid wax. It is used as an occlusive moisturizer, emollient, and emulsifier.
Silk Powder
Est. %0.3
Function
Origin
Description is coming soon
Tribehenin
Est. %0.3
Function
Origin
A soft, pliable wax that serves as an occlusive moisturizer and emollient. It improves the spreadability of skincare products, including the increased payoff of stick products, and imparts a pleasant, smooth feel upon application.
Triethanolamine
Est. %0.3
Function
Origin
A clear, colorless, and highly viscous liquid, this ingredient is an excellent pH adjuster. When it is necessary to neutralize an acidic solution or to generally increase the pH of a product, triethanolamine is a common choice.
Xanthan Gum
Est. %0.3
Function
Origin
A natural multi-functional ingredient that originates from fermented sugars. Xanthan gum acts as a viscosity-building agent to thicken skincare products. It is also an excellent stabilizer and works well to hold other ingredients together.
Butylene Glycol
Est. %0.3
Function
Origin
A clear, colorless liquid humectant that draws moisture to the skin. The humectancy of butylene glycol, owed to its two hydroxyl groups, is quite considerable, although not as powerful as glycerin, which contains three hydroxyl groups.
Tocopheryl Acetate
Est. %0.3
Function
Origin
An antioxidant derivative of tocopherol (vitamin E). It helps to protect cells from free radicals and UV damage through the conversion to active vitamin E in the skin. It is more stable than tocopherol.
Allantoin
Est. %0.3
Function
Origin
A fluffy, white powder that acts as a humectant due to its water-loving chemistry and as an exfoliant that helps to remove dead skin cells. It has also been shown to be very soothing to irritated and inflamed skin.
Trehalose
Est. %0.3
Function
Origin
A sweet-tasting saccharide that can be found in various yeasts and fungi and that is manufactured from starch for cosmetic purposes. It is one of the most popular sugars in skincare and is mainly used for its humectant properties.
Citrus Grandis Peel Oil
Est. %0.3
Function
Origin
A fragrant essential oil obtained from pomelo peels - sometimes mislabeled as grapefruit. The high limonene content is responsible for its citrusy scent. It may induce sun allergies in people sensitive to citrus fruits.
Ascorbyl Palmitate
Est. %0.3
Function
Origin
A form of vitamin C derived from ascorbic acid and palmitic acid. It is more stable and less irritating than ascorbic acid. Unfortunately, Ascorbyl Palmitate lacks the studies to prove its anti-wrinkle efficacy.
Ceramide NS
Est. %0.3
Function
Origin
A wax-like lipid natural to the skin’s lipid matrix. It is less frequently used but, in combination with other ceramides, can help to restore balance in the skin’s lipid barrier.
PEG-10 Rapeseed Sterol
Est. %0.3
Function
Origin
PEG-10 Rapeseed Sterol is a mixture of polyethylene glycol (a water-soluble bulking and lubricating synthetic compound) and fat-soluble phytosterols from rapeseed oil. This mixture is used in skincare products to assist with the solubility and the of oil and water (emulsification).
Triacetin
Est. %0.3
Function
Origin
Description is coming soon
Copper PCA
Est. %0.3
Function
Origin

A blue-green synthetic salt of copper and pyrrolidone carboxylic acid. It has antimicrobial properties and may be able to help with wound healing and sebum control, although the studies are lacking.

Polyquaternium-51
Est. %0.3
Function
Origin
A biocompatible phospholipid copolymer that is designed to mimic the lipid-based cell membrane found in human skin. Its main function is as a humectant moisturizer.
Sodium Hyaluronate
Est. %0.3
Function
Origin
A sodium salt of famous hyaluronic acid. A potent humectant that hydrates the skin, supports collagen function, and fills out small wrinkles. Sodium hyaluronate also offers soothing and antioxidant properties.
Palmitoyl Oligopeptide
Est. %0.3
Function
Origin
This is an old INCI name that can refer to several other peptides. They are all short fragments of collagen or elastin and function as signal molecules, telling the skin to repair and restructure the dermis, resulting in anti-wrinkle activity.
Disodium EDTA
Est. %0.3
Function
Origin
A synthetic chelator that helps to maintain the look and smell of a product by 'locking up' troublesome metal ions.
Citric Acid
Est. %0.3
Function
Origin
A gently exfoliating AHA that helps to remove the top layer of dead skin cells. In comparison to other AHAs, citric acid has been shown to be one of the least effective. It is also very commonly used as a stabilizing and pH-controlling agent.
Sodium Benzoate
Est. %0.3
Function
Origin
A preservative that usually works in combination with other preservatives. It has to be at low pH (<5.5) to be effective.
Potassium Sorbate
Est. %0.3
Function
Origin
A preservative widely used in food and personal care products, available from natural sources or synthetically produced. Potassium sorbate works by inhibiting the growth of yeasts, molds, and some bacteria.
Chlorphenesin
Est. %0.3
Function
Origin
A preservative and broad-spectrum antimicrobial agent that protects products from a wide range of bacteria and fungi.
Fragrance
Est. %0.3
Function
Origin
Under trade secret law, manufacturers have the right not to disclose what exactly went into the fragrance and use the unspecific word Fragrance or Parfum instead. Many fragrances are highly allergenic.
Hexyl Cinnamal
Est. %0.3
Function
Origin
A synthetic scent ingredient that produces a jasmine-like fragrance. According to the International Fragrance Association (IFRA), hexyl cinnamal is a skin sensitizer and allergen and so its use in skincare should be limited.
Butylphenyl Methylpropional
Est. %0.3
Function
Origin
A synthetic fragrance ingredient used to recreate the scent of lilies, this ingredient also features fresh, green, and powdery notes. Butylphenyl Methylpropional was recently labeled as Toxic to Reproduction in the EU and will be banned in 2022.
Limonene
Est. %0.3
Function
Origin
One of the most used fragrances in skincare products. It is produced from the peels of citrus fruits and has a fresh, pleasant, citrusy smell. People who are sensitive to citrus should try to avoid it, or at least do a patch test before using it.